<?xml version="1.0" encoding="UTF-8"?>
<level>
  <layer>                                     </layer>
  <layer>                                     </layer>
  <layer>=k          =                        </layer>
  <layer>=        =        f  c               </layer>
  <layer>=               ==========           </layer>
  <layer>=  =   =  == c                c      </layer>
  <layer>=  f    =    ==         =   ====    =</layer>
  <layer>=====                = ==           =</layer>
  <layer>    ====  c  ===   ===f== f ====  ===</layer>
  <layer>       ======   =============   ===  </layer>
</level>